Home / 1,348,288.60-2,022,432.90-1,212,986.20

Finding the Fourth Proportional to 1,348,288.60, 2,022,432.90 and 1,212,986.20

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Solution

The fourth proportional to 1,348,288.60, 2,022,432.90 and 1,212,986.20 is: 1,819,479.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348,288.60 : 2,022,432.90 = 1,212,986.20 : x
  2. Step 2: Convert to fraction form
    1,348,288.60/2,022,432.90 = 1,212,986.20/x
  3. Step 3: Cross multiply
    1,348,288.60x = 2,022,432.90 × 1,212,986.20
  4. Step 4: Simplify right side
    1,348,288.60x = 2,453,183,198,125.98
  5. Step 5: Solve for x
    x = 2,453,183,198,125.98/1,348,288.60
  6. Step 6: Final answer
    x = 1,819,479.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.